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TROUBLESHOOTING AND ROUTINE MAINTENANCE
ZleMFC-US-FAX-4750e/5750e-
1
Open the front cover.
2
Remove the old drum unit.
Place the drum unit on a drop cloth or
disposable paper to avoid scattering
toner.
3
Hold down the lock lever on the right
and pull the toner cartridge out of the
drum unit assembly.
(See
Replacing the Toner Cartridge,
Page 19-20.)
4
Wait to unpack the new drum unit until immediately before installing it. Place the old
drum unit into the aluminium bag, and then discard it according to local regulations.
5
Reinstall the toner cartridge into the new drum unit. (See Replacing the Toner
Cartridge
, Page 19-20.)
6
Reinstall the new drum unit, keeping the front cover open.
7
Press Clear.
8
Press 1 and when the LCD shows ACCEPTED,
and then close the front cover.
Caution
If toner scatters and your hands or clothes get dirty, immediately wipe off or
wash with cold water.
Checking the Drum Life
You can see the percentage of the drum’s life that remains available.
1
Press Menu, 2, 0, 3.
2
For five seconds, the LCD shows the available
percentage of drum life.
Discard the used drum unit according to local regulations, keeping it separate
from domestic waste. Be sure to seal the drum unit tightly so toner powder does
not spill out of the unit. If you have questions, call your local waste disposal
office.
Even if the remaining drum life is 0%, you may continue to use the drum unit
until you have a print quality problem.
Lock
Lever
REPLACE DRUM?
1.YES 2.NO
3.DRUM LIFE
DRUM LIFE
REMAINING:70%